Self-mode-matching compact low-noise all-solid-state continuous wave single-frequency laser with output power of 140 W
Authors：Yixiao Wei,Weina Peng, Jiawei Li, Pixian Jin,Jing Su, Huadong Lu∗ AND Kunchi Peng
The high power all-solid-state continuous wave single-frequency laser is a significant source for science and application due to good beam quality and low noise. However, the output power of the laser is usually restricted by the harmful thermal lens effect of the solid gain medium. To address this issue, we develop a self-mode-matching compact all-solid-state laser with a symmetrical ring resonator in which four end-pumped Nd:YVO4 laser crystals are used for both laser gain media and mode-matching elements. With this ingenious design, the thermal lens effect of every laser crystal can be controlled and the dynamic of the esigned laser including the stability range and the beam waist sizes at crystals can be manipulated only by adjusting the pump power used on each laser gain medium. Under an appropriate combination of pump powers on four crystals, self-mode-matching in a resonator is realized. A stable CW single-frequency at 1064 nm with 140-W power, 102-kHz linewidth, and low intensity noise is obtained. The presented design paves an effective way to further scale-up the output power of a compact laser by employing more pieces of gain media.
Realization of CW single-frequency tunable Ti:sapphire laser with immunity to the noise of the pump source
Authors：JIAQI SONG, JILIANG QIN, PIXIAN JIN, YANAN CHEN, JING SU, AND HUADONG LU
All-solid-state continuous-wave (CW) single-frequency tunable Ti:sapphire (Ti:S) laser is an important source in quantum optics and atomic physics. However, intracavity etalon (IE) locking is easily influenced by the intensity noise of the pump source in the low frequency band. In order to address this issue, a differential detector with dual-photodiodes (PDs) is designed and employed in the experiment. Both PDs are used to detect the lights of the pump source and the built Ti:S laser, respectively. As a result, the influence of the intensity noise of the pump source on the stability of the IE locking is successfully eliminated and the IE is stably locked to the oscillating longitudinal-mode of the laser. On this basis, a stable CW single-frequency tunable Ti:S laser is realized. The presented method is beneficial to attain a stable single-frequency tunable laser with immunity to the intensity noise of the pump source.
Recent progress in continuously tunable low-noise all-solid-state single-frequency continuous-wave laser based on intracavity locked etalon
Authors：Pixian Jin , Jiao Wei , Jing Su , Huadong Lu * and Kunchi Peng
Continuously tunable CW single-frequency Nd:YAP/LBO laser with dual-wavelength output
Authors：Pixian Jin , Yi Cui , Jing Su , Huadong Lu *, and Kunchi Peng